diff --git a/include/SDL_test_images.h b/include/SDL_test_images.h
index 70c96898e..a57e6e4c5 100644
--- a/include/SDL_test_images.h
+++ b/include/SDL_test_images.h
@@ -53,7 +53,7 @@ typedef struct SDLTest_SurfaceImage_s {
   int width;
   int height;
   unsigned int bytes_per_pixel; /* 3:RGB, 4:RGBA */ 
-  unsigned char pixel_data[];
+  unsigned char pixel_data[0];
 } SDLTest_SurfaceImage_t;
 
 /* Test images */